【摘要】：目的對武漢市飲用水全氟辛烷磺酸(PFOS)和全氟辛酸(PFOA)含量進(jìn)行調(diào)查和風(fēng)險評估。方法武漢市9個市政水廠,每個水廠采集水源水、出廠水、末梢水各一份,采用固相萃取-高效液相色譜串聯(lián)質(zhì)譜法,測定水樣中的PFOS和PFOA含量,實驗數(shù)據(jù)采用SPSS 11.0統(tǒng)計軟件進(jìn)行分析,運(yùn)用化學(xué)污染物風(fēng)險評價模型進(jìn)行風(fēng)險概率評價。結(jié)果所有水樣均未檢出PFOS。飲用水中PFOA含量水源水為18.12~119.31 ng/L,出廠水為17.25~108.98 ng/L,末梢水17.01~112.91 ng/L。PFOA含量水源水與出廠水、末梢水,出廠水與末梢水之間均存在正相關(guān)關(guān)系(P≤0.01),但水源水、出廠水、末梢水中PFOA濃度分布差異無統(tǒng)計學(xué)意義。以漢江和長江為水源地的飲用水中PFOA通過飲水途徑對飲用者所致健康危害的個人年風(fēng)險分別為3.0×10-11和1.2×10-10。結(jié)論武漢市飲用水中存在PFOA污染,PFOA通過飲水途徑對飲用者所致健康危害的個人年風(fēng)險低于國際輻射防護(hù)委員會(ICRP)推薦的最大可接受水平。
[Abstract]:Objective to investigate the contents of perfluorooctanesulfonic acid (PFOS) and perfluorooctanoate (PFOA) in drinking water of Wuhan. Methods the contents of PFOS and PFOA in 9 municipal water plants in Wuhan were determined by solid phase extraction-high performance liquid chromatography (HPLC) mass spectrometry. The experimental data were analyzed by SPSS 11.0 statistical software, and the risk probability evaluation was carried out by using the risk assessment model of chemical pollutants. Results PFOS. was not detected in all water samples. The content of PFOA in drinking water is 18.12 鈮，

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